operator==,!=,<,<=,>,>=(std::multiset)

C++

Language

Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

Containers library

array (C++11)

vector

deque

forward_list (C++11)

list

set

multiset

map

multimap

unordered_set (C++11)

unordered_multiset (C++11)

unordered_map (C++11)

unordered_multimap (C++11)

stack

queue

priority_queue

span (C++20)

std::multiset

Member functions

multiset::multiset

multiset::~multiset

multiset::operator=

multiset::get_allocator

Iterators

multiset::beginmultiset::cbegin (C++11)

multiset::endmultiset::cend (C++11)

multiset::rbeginmultiset::crbegin (C++11)

multiset::rendmultiset::crend (C++11)

Capacity

multiset::empty

multiset::size

multiset::max_size

Modifiers

multiset::clear

multiset::insert

multiset::emplace (C++11)

multiset::emplace_hint (C++11)

multiset::erase

multiset::swap

multiset::extract (C++17)

multiset::merge (C++17)

Lookup

multiset::count

multiset::find

multiset::contains (C++20)

multiset::equal_range

multiset::lower_bound

multiset::upper_bound

Observers

multiset::key_comp

multiset::value_comp

Deduction guides(C++17)

template< class Key, class Compare, class Alloc > bool operator==( const std::multiset<Key,Compare,Alloc>& lhs, const std::multiset<Key,Compare,Alloc>& rhs );	(1)
template< class Key, class Compare, class Alloc > bool operator!=( const std::multiset<Key,Compare,Alloc>& lhs, const std::multiset<Key,Compare,Alloc>& rhs );	(2)
template< class Key, class Compare, class Alloc > bool operator<( const std::multiset<Key,Compare,Alloc>& lhs, const std::multiset<Key,Compare,Alloc>& rhs );	(3)
template< class Key, class Compare, class Alloc > bool operator<=( const std::multiset<Key,Compare,Alloc>& lhs, const std::multiset<Key,Compare,Alloc>& rhs );	(4)
template< class Key, class Compare, class Alloc > bool operator>( const std::multiset<Key,Compare,Alloc>& lhs, const std::multiset<Key,Compare,Alloc>& rhs );	(5)
template< class Key, class Compare, class Alloc > bool operator>=( const std::multiset<Key,Compare,Alloc>& lhs, const std::multiset<Key,Compare,Alloc>& rhs );	(6)

Compares the contents of two containers.

1-2) Checks if the contents of lhs and rhs are equal, that is, they have the same number of elements and each element in lhs compares equal with the element in rhs at the same position.

3-6) Compares the contents of lhs and rhs lexicographically. The comparison is performed by a function equivalent to std::lexicographical_compare.

Parameters

lhs, rhs	-	containers whose contents to compare
- Key must meet the requirements of EqualityComparable in order to use overloads (1-2).

Return value

1) true if the contents of the containers are equal, false otherwise

2) true if the contents of the containers are not equal, false otherwise

3) true if the contents of the lhs are lexicographically less than the contents of rhs, false otherwise

4) true if the contents of the lhs are lexicographically less than or equal the contents of rhs, false otherwise

5) true if the contents of the lhs are lexicographically greater than the contents of rhs, false otherwise

6) true if the contents of the lhs are lexicographically greater than or equal the contents of rhs, false otherwise

Complexity

1-2) Constant if lhs and rhs are of different size, otherwise linear in the size of the container

3-6) Linear in the size of the container